EMC & Photonics

Proficiency Testing

for laboratories and test facilities – independent performance assessment ensuring reliable and comparable results

Seibersdorf Laboratories supports quality management and technical confidence by offering structured proficiency testing programmes. Our activities enable participants to review the consistency of their measurement and testing results, identify improvement potential and strengthen confidence in day-to-day laboratory work.

  • Structured proficiency testing programmes
  • Performance review based on predefined criteria
  • Support for quality management and continuous improvement

 

Proficiency Testing

From Practice for Practice

Reliable EMC measurement results are essential for regulatory compliance, product development and international acceptance. For more than 35 years, Seibersdorf Labor GmbH has supported EMC laboratories worldwide through accredited testing, calibration and site validation services. Building on this experience, we offer proficiency testing (PT) programmes that reflect real EMC measurement practice.

Our proficiency testing activities are designed in alignment with ISO/IEC 17043. They complement our long-standing ISO/IEC 17025 testing and calibration services and provide laboratories with an objective and practical assessment of their measurement performance. We ensure confidentiality of participant results, transparency in evaluation procedures and independence in the assessment of performance.

This close link between testing, calibration and proficiency testing ensures technically sound programme design and evaluation – from practice for practice.

 

Be Part of the next PT-Round!

To support your long-term planning, we recommend considering our upcoming PT rounds early. If you have specific PT needs or preferred topics, please let us know - your feedback helps us design future PT programmes that match practical requirements.

Contact us

 

Proficiency Testing

Upcoming PT-Rounds

RR001 - Radiated Emissions 30 MHz – 1 GHz2027 Contact us
RR002 - Radiated Emissions 1 GHz – 18 GHz2027 Contact us
Custom Solution available  Request now
Custom Solution available  Request now
Custom Solution available  Enquire now
Custom Solution available  Enquire now
Proficiency Testing

Why Proficiency Testing?

Support for Continuous Improvement

PT participation helps identify systematic influences, review internal procedures and strengthen confidence in results.

Technical Expertise

PT Programmes are designed and evaluated by experts with decades of hands-on experience in EMC testing, calibration and site validation and photonics.
 

Practical Relevance

Our Measurement tasks are based on realistic EMC test scenarios, not idealised reference cases.

Transparency and Comparability

We ensure clear evaluation criteria, documented statistical methods and confidential handling of participant data.

Overview of Benefits

What we can do for you

We understand the requirements and challenges faced by testing and calibration laboratories when demonstrating technical competence. Our proficiency testing programmes provide objective evidence of measurement performance and support laboratories in meeting accreditation, regulatory and quality assurance requirements.

Interference Field Strength PTs

Proficiency testing programmes for interference field strength address the determination of radiated emissions under defined and reproducible conditions. The measurement tasks are designed to reflect realistic EMC test scenarios rather than idealised reference situations.

This allows laboratories to assess the influence of instrumentation, antenna factors, positioning, frequency range selection and data evaluation methods. A comparison of anonymized results across participants provides valuable insight into measurement consistency and highlights potential sources of deviation.

Participation supports laboratories in demonstrating measurement competence, improving internal procedures and providing objective evidence of technical performance during assessments and customer audits.

With our programs we cover many relevant norms and standards:

  • CISPR 16-2-3
  • CISPR 16-2-2
  • CISPR 16-2-1
  • CISPR 25
  • ANSI C63.4
  • IEC 61000-4-20
  • IEC 61000-4-21

 

EMC Test Site Validation

The performance of the EMC test environment is a decisive factor for the reliability of radiated measurements. Proficiency testing in EMC test site validation focuses on standardized environments such as open area test sites, semi‑anechoic chambers and fully anechoic rooms.

Participants perform measurements using their established procedures and equipment. The results are evaluated with respect to defined performance parameters, allowing an objective comparison of site behaviour under practical conditions. This approach supports the identification of systematic influences related to site geometry, absorber performance, reflections or positioning.

Repeated participation enables laboratories to monitor their ability of test site validation and increases confidence in compliance measurements performed for customers and regulatory authorities.

We offer programs for:

  • CISPR 16-1-4
  • EN 50147-1
  • IEC 61000-4-21
  • ANSI C63.4

Equipment Calibration PTs

Calibration of high‑frequency measurement equipment is a key element of traceability in EMC testing. Our proficiency testing programmes in this area focus on equipment such as antennas, field probes and related components commonly used for radiated measurements.

Calibration of photonics measurement equipment is an essential element of traceability for optical and radiometric measurements. Our proficiency testing programmes in this area focus on quantities such as irradiance and reflectance and address measurement instruments typically used in photonics laboratories.

Participants perform calibration tasks using their routine procedures. Results are evaluated with respect to consistency, uncertainty handling and comparability between laboratories. Our programmes are designed to reflect realistic calibration challenges and practical limitations.

The obtained results support laboratories in reviewing calibration methods, identifying systematic effects and enhancing confidence in the traceability of EMC measurement results.

With our programs we cover many relevant norms and standards:

  • CISPR 16-1-2
  • CISPR 16-1-6
  • IEEE 1309
  • ANSI C63.4
  • CISPR 25

 

Proficiency Testing

FAQs

Proficiency testing (PT) is an independent assessment of a laboratory’s measurement performance through interlaboratory comparison. It supports the demonstration of technical competence and helps to ensure the reliability and comparability of measurement results.

Proficiency testing is relevant for testing and calibration laboratories, particularly those accredited or seeking accreditation according to ISO/IEC 17025. Participation is also beneficial for internal quality assurance and method verification.

Results are evaluated using transparent statistical methods in accordance with ISO/IEC 17043. Individual results are compared anonymously with those of other participants or expert laboratories while maintaining strict confidentiality.

Yes. Regular participation in appropriate proficiency testing programmes is regarded as an important element of accreditation and surveillance activities and provides objective evidence of measurement competence.

Proficiency testing is a specific form of interlaboratory comparison that includes defined performance criteria, statistical evaluation and an independent assessment of results in accordance with ISO/IEC 17043. Interlaboratory comparisons without performance evaluation may also be conducted for method development or information purposes and are not necessarily intended to assess laboratory competence.

The appropriate frequency depends on the scope of accreditation, test volume and risk associated with the measurement activity. Accreditation bodies typically expect regular participation in relevant proficiency testing programmes or equivalent activities as part of ongoing quality assurance.

Yes. Individual participant results are treated as strictly confidential. Reports present results in anonymised form, and only the participating laboratory has access to its own detailed evaluation.

Information on current and upcoming PT rounds is provided on this website. For registration or specific questions, please contact us using the provided contact options.

to the upcoming PT-Rounds

Complaints and Appeals in the Context of Our Proficiency Tests

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